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This page is a reference for ProgClub system administrators. For information about ProgClub domains, see Domains. For information about member services, see Services. See Machines for information about hosts on the ProgClub network. See Projects for current projects or check out our Forums to get in touch.

Etckeeper

Etckeeper is now installed on Charity, which means the correct procedure after making edits to files in /etc is to issue:

$ sudo etckeeper commit "my reasoning here"

after you're done with your changes. There's an auto commit every day, and an autocommit whenever you apt-get install something. You can manually commit your changes as above. To see the commit log for a particular file:

$ sudo bzr log /etc/passwd

To revert an unwanted or bad change, work out which revision you want to revert to (see log above) and run:

$ sudo bzr revert --revision <commit number> <file>

For example, to restore the /etc/passwd file to the state it was in in revision 3,

$ sudo bzr revert --revision 3 /etc/passwd

To check for uncommited changes, run (From inside /etc):

$ sudo bzr status

For example:

$ sudo bzr status
modified:
crontab

If you see no output, there are no uncommited changes.

Adding a new user

Updating members database

At the moment member information is recorded in Members. A member should have a Wiki account to start with, then an entry in the Members page (where they are allocated a member number), then the "User info" on their user page should be filled out (leave fields as "Not disclosed" unless you have their permission to publish their details). After the Members page has been updated you will have:

{username}: the Unix/Kerberos username of the new member

{member number}: the member's User ID

{group}: whether the user has 'sudo' membership or not

there are two groups at ProgClub: 'sudo' and 'user'

everyone is in 'user' (gidNumber == 500)

administrators are in 'sudo' (gidNumber == 27)

And that's enough information to create their account as detailed below.

Kerberos administration

To create a new user in Kerberos:

SSH to charity.progclub.org

Login

Run kadmin addprinc:

$ sudo kadmin -p {your username} -q "addprinc {username}"

Note: use sudo so that the log file can be written

{your username} is your ProgClub username

{username} is the ProgClub username of the user your are adding

If the user is an administrator, add them to /etc/krb5kdc/kadm5.acl. E.g., at the end of the file,

username@PROGCLUB.ORG *

replacing 'username' as appropriate. You need to restart the Kerberos administration server after this change: